Thermally assisted magnetic recording head and method of manufacturing the same
OwnerTakuya Matsumoto, Kimio Nakamurainventors
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Abstract
In order to prevent deterioration of floating characteristics of a slider due to deformation of a slider floating surface by thermal expansion of a coil, the followings are performed. A recessed portion is formed in a part of the slider, and a device for generating an optical near-field and the coil for generating a magnetic field are formed in the recessed portion. The optical near-field generation device is formed on a surface facing a recording medium, and the magnetic field application coil is formed on an upper surface of the recessed portion. The optical near-field generation device and the magnetic field application coil are respectively exposed to the surface.
Claims10
A head used for a thermally assisted magnetic recording apparatus for recording data on a data recording medium by applying a magnetic field and an optical near-field thereto, wherein
- said head comprises a substrate with a recessed portion formed therein;
- and an optical near-field generation device and a magnetic field generation device are formed in the recessed portion.
A manufacturing method of a head for use in a thermally assisted magnetic recording apparatus for recording data on a data recording medium by applying a magnetic field and an optical near-field, comprising the steps of:
- forming a recessed portion on one side of a substrate;
- forming an optical near-field generation device in the position corresponding to the recessed portion on the other surface of the substrate;
- and
- forming a magnetic field generation device on the bottom part of the recessed portion of the substrate.
Dependencies are inferred from the claim text.